US6244521B1 - Micro-stream rotator with adjustment of throw radius and flow rate - Google Patents

Micro-stream rotator with adjustment of throw radius and flow rate Download PDF

Info

Publication number
US6244521B1
US6244521B1 US09/433,299 US43329999A US6244521B1 US 6244521 B1 US6244521 B1 US 6244521B1 US 43329999 A US43329999 A US 43329999A US 6244521 B1 US6244521 B1 US 6244521B1
Authority
US
United States
Prior art keywords
shaft
rotor plate
baffle
flow path
nozzle
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US09/433,299
Inventor
George Sesser
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hunter Industries Inc
Original Assignee
Nelson Irrigation Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nelson Irrigation Corp filed Critical Nelson Irrigation Corp
Priority to US09/433,299 priority Critical patent/US6244521B1/en
Assigned to NELSON IRRIGATION CORPORATION reassignment NELSON IRRIGATION CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: SESSER, GEORGE
Priority claimed from US09/532,772 external-priority patent/US6499672B1/en
Application granted granted Critical
Publication of US6244521B1 publication Critical patent/US6244521B1/en
Assigned to HUNTER INDUSTRIES INCORPORATED reassignment HUNTER INDUSTRIES INCORPORATED ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: NELSON IRRIGATION CORPORATION
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B3/00Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements ; Spraying or sprinkling heads with rotating elements located upstream the outlet
    • B05B3/003Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements ; Spraying or sprinkling heads with rotating elements located upstream the outlet with braking means, e.g. friction rings designed to provide a substantially constant revolution speed
    • B05B3/005Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements ; Spraying or sprinkling heads with rotating elements located upstream the outlet with braking means, e.g. friction rings designed to provide a substantially constant revolution speed using viscous dissipation, e.g. a rotor movable in a chamber filled with oil
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B3/00Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements ; Spraying or sprinkling heads with rotating elements located upstream the outlet
    • B05B3/02Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements ; Spraying or sprinkling heads with rotating elements located upstream the outlet with rotating elements
    • B05B3/04Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements ; Spraying or sprinkling heads with rotating elements located upstream the outlet with rotating elements driven by the liquid or other fluent material discharged, e.g. the liquid actuating a motor before passing to the outlet
    • B05B3/0486Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements ; Spraying or sprinkling heads with rotating elements located upstream the outlet with rotating elements driven by the liquid or other fluent material discharged, e.g. the liquid actuating a motor before passing to the outlet the spray jet being generated by a rotary deflector rotated by liquid discharged onto it in a direction substantially parallel its rotation axis

Abstract

A rotating stream sprinkler comprising a rotor plate supported on one end of a shaft for rotation, in an operative mode, relative to the shaft; a nozzle located along the shaft upstream of the rotor plate; a baffle fixed to an opposite end of the shaft; a core flow path component located along the shaft between the nozzle and the baffle; and a clutch device for enabling in an adjustment mode, rotation of the rotor plate with the shaft and the baffle relative to the core flow path component to thereby alter the flow of water through the core flow path component toward the nozzle.

Description

TECHNICAL FIELD

This invention relates to landscape and agricultural irrigation sprinklers and, specifically, to a rotating, viscously damped sprinkler which permits adjustment of the stream pattern, throw radius and flow rate.

BACKGROUND

Sprinklers utilizing a fixed nozzle to emit a stream onto the grooves of a viscously damped rotor plate are known in the art and examples of such constructions may be found in commonly owned U.S. Pat. Nos. 5,288,022 and 5,058,806. Sprinklers of this type may be incorporated into pop-up type arrangements or they may be mounted on, for example, fixed riser pipes. In either case, it is possible to employ adjustable or interchangeable nozzles having orifices which emit a 360° stream, a 180° stream, a 90° stream, etc. so as to produce a desired sprinkling pattern, to be determined primarily by the location of the sprinkler. There is also a need, however, to be able to adjust the throw radius and flow rate of the sprinkler without varying the water pressure.

SUMMARY OF THE INVENTION

This invention provides an internal rotary valve in the base of the sprinkler mechanism which can be actuated by pressing down on the sprinkler rotor plate to thereby engage a valve drive mechanism and rotating the rotor plate to open or close the internal valve between maximum open or closed positions, or any position therebetween.

As is well known in the art, the rotor plate itself is provided with specially configured grooves which cause the rotor plate to rotate when a stream emitted from the nozzle impinges on the grooves. The plate itself is mounted for rotation about a normally fixed, i.e., non-rotating shaft. Within the rotor plate, there is a chamber adapted to be at least partially filled with a high viscosity fluid. At the same time, there is a fixed stator mounted on the shaft and located within the chamber. As the rotor plate and chamber wall rotate about the shaft and the fixed stator, shearing of the viscous fluid occurs, slowing down the rotation of the rotor plate to produce a uniform and more well defined pattern. The shaft extends out of the rotor plate and into the sprinkler body, through the center of the nozzle. The nozzle itself is a replaceable item, interchangeable with nozzles having various opening configurations. The nozzle and an underlying generally cylindrical core flow path component are sandwiched between a removable sprinkler body cap and a baffle fixed to the lower end of the shaft for rotation with the shaft. The baffle contains a series of spokes or lobes which can rotate relative to ports formed in the core flow path component to regulate the amount of water flowing to the nozzle.

A rotor plate cap, held in place on the rotor plate by a retainer ring, is formed with an annular array of teeth adapted to engage with a mating annular array of teeth formed in the upper surface of the stator within the fluid chamber. The rotor plate cap and rotor plate can be pressed downwardly (assuming an upright orientation for the sprinkler) on the shaft (and relative to the shaft) so as to cause the teeth on the rotor plate cap and the fixed stator to engage. With the teeth so engaged, a “drive” mechanism is established between the rotor plate and the shaft so that manual rotation of the rotor plate causes the shaft to rotate as well. This results in the baffle rotating relative to the core flow path component to thereby throttle the flow through ports in the core to achieve the desired throw radius. When the rotor plate is pulled upwardly to its original position, the respective teeth on the rotor plate cap and stator are disengaged, and the rotor plate is then free to rotate relative to the shaft in a normal operating mode.

Thus, in accordance with its broader aspects, the present invention relates to a rotating stream sprinkler comprising a rotor plate supported on one end of a shaft for rotation, in an operative mode, relative to the shaft; a nozzle located along the shaft upstream of the rotor plate; a baffle fixed to an opposite end of the shaft; a core flow path component located along the shaft between the nozzle and the baffle; and a drive mechanism for enabling in an adjustment mode, rotation of the rotor plate with the shaft and the baffle relative to the core flow path component to thereby alter the flow of water through the core flow path component toward the nozzle.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a partial side elevation of a micro-stream rotating type sprinkler in accordance with a first embodiment of the invention;

FIG. 2 is a partial side section similar to FIG. 1, but with the rotor plate of the sprinkler pressed downwardly to a position that permits adjustment of the flow rate;

FIG. 3 is a bottom plan view of a baffle and core flow through component, with the ports in the core wide open;

FIG. 4 is a view similar to FIG. 3 but illustrating the baffle rotated to a position that partially closes the ports in the core;

FIG. 5 is a view similar to FIG. 4 but with the baffle rotated to a position that fully closes the ports in the core;

FIG. 6 is a partial side section of a micro-stream rotator in accordance with a second exemplary embodiment of the invention;

FIG. 7 is a top plan view of the core flow path component incorporated in FIGS. 1 and 2 and shown partially in FIGS. 3-5;

FIG. 8 is a top plan view of the nozzle component incorporated in the sprinkler shown in FIGS. 1, 2 and 6;

FIG. 9 is a side elevation of the nozzle component shown in FIG. 8 but rotated 90° in a clockwise direction;

FIG. 10 is a top plan view of the sprinkler body cap incorporated in the sprinkler shown in FIGS. 1, 2 and 6;

FIG. 11 is a top plan view of the stator component incorporated in the sprinkler shown in FIGS. 1, 2 and 6; and

FIG. 12 is a bottom plan view of the rotor plate cap component incorporated in the sprinkler shown in FIGS. 1, 2 and 6.

DETAILED DESCRIPTION OF THE DRAWINGS

With reference now to FIG. 1, a rotary sprinkler device 10 is shown in connection with a well known pop-up sprinkler (partially shown) which includes a generally cylindrical riser or outer sleeve 12 which moves up and down within a sprinkler body (not shown) in response to water pressure. A pop-up sprinkler of this type is disclosed in the '806 patent, but this invention may be used with other pop-up sprinklers as well. The sleeve or riser 12 has a threaded upper end 14 to which is threadably engaged a sprinkler body cap 16. The sprinkler mechanism in accordance with this invention is supported within the riser 12 by means of an inner sleeve 18 having a radially outwardly directed flange 20 at the upper end thereof. The inner sleeve 18 is supported on the upper edge of the threaded upper end 14 of the outer sleeve or riser 12 and is held in place by the cap 16. The sprinkling mechanism itself includes a rotor plate 22, the underside of which is formed with a plurality of off-center circumferentially arranged grooves 24 which are configured to cause the rotor plate to rotate when a stream emitted from the sprinkler body impinges on the grooves. The rotor plate is supported on a generally stationary shaft 26 for rotation relative to the shaft. Within the rotor plate, there is a dish-shaped bearing 28, the lower end of which is formed with a hole 29 through which the shaft 26 passes. The upper end of the bearing is engaged by a lower edge 31 of an annular rotor body cap 30, these two components defining an internal fluid chamber 32. A fixed stator 34 is press fit onto the shaft 26 and is located within the chamber. The chamber is adapted to be filled or partially filled with a highly viscous fluid in order to slow the rotating or whirling speed of the rotor plate to a degree which maximizes stream uniformity. The rotor plate cap 30 is secured to the rotor plate 22 by means of an annular retainer ring 36. An annular flex seal 37 seals the lower end of the chamber 32 to prevent leakage of fluid as well as to prevent the ingress of dirt or debris into the chamber. The upper end of the chamber 32 is sealed by a plug 35 press fit in the top of the rotor plate cap 30. It is significant that there is a space between the top of the shaft 26 and the plug 35 which permits axial downward movement of the rotor plate 22 on and relative to the shaft 26 as explained further below.

The opposite end of the shaft 26 supports three axially aligned components within the inner sleeve 18 in the sprinkler body. The first of these components is a baffle 38 (see also FIGS. 3-5) fixed to the lower end of the shaft 26. A core flow path component 40 is slidably received on the shaft above the baffle 38, and includes an inner wall 42 and an outer wall 44 with an annular space therebetween. The space is divided into four discrete flow passages by internal ribs 43 a, b, c and d. These passages are accessed by four ports 46 a, b, c and d at the lower end of the core, best seen in FIGS. 1 and 7. The ports 46 are smaller in cross sectional area than the passages themselves.

Supported above the core component is an annular nozzle 48 which has an open lower end axially aligned with the flow passages in the core component. The upper end of the nozzle has a restricted orifice 50 which may extend, e.g., 360°, about the shaft 26; 180° (see especially FIG. 8) about the shaft; or 90° about the shaft, depending on the desired shape of the sprinkling pattern. In the illustrated embodiment, the orifice extends approximately 180°. Note that the sprinkler body cap 16 includes a similarly shaped orifice 52 extending about a conically shaped, annular mounting sleeve 54 through which the shaft 26 passes.

With reference now also to FIGS. 8 and 9, the nozzle component 48 has a depending tab 56 which seats within one of the discrete flow passages in the core flow path component 40. At the same time, the upper end of the nozzle component 48 is provided with a raised arcuate rib 58 extending approximately 180° about the circumference of the nozzle component, that is adapted to seat within the similarly shaped groove 60 on the underside of the sprinkler body cap 16 (see FIG. 10). Since the cap 16 is threadably secured on the riser 12, it will be appreciated that by “keying” the nozzle to both the core flow path component 40 and the sprinkler body cap 16 (via tab 56 and rib 58, respectively), the core flow path component 40 and the nozzle 48 are prevented from any rotation within the sleeve 18. On the other hand, the baffle 38 is rotatable with the shaft 26 relative to the ports 46 a, b, c and d in an adjustment mode as described further below.

Returning to FIG. 1, it may be seen that the underside of the rotor plate cap 30 is provided with an annular array of teeth 62 and the upper surface of the stator 34 is provided with an annular array of mating teeth 64. Since the shaft 26 is sized to allow an axial space 66 between the upper end of the shaft and the plug 35 which prevents escape of any viscous fluid from the upper end of the rotor plate, the rotor plate 22 as well as the rotor body cap 30 and bearing 28 can be pressed downwardly along the shaft 26 relative to the fixed stator 34. This movement is apparent from FIG. 2 which shows the mating teeth 60 and 62 in engagement by reason of a downward pressing action on the rotor plate 22. With the rotor plate and stator so engaged, it will be appreciated that by rotating the rotor plate, the shaft 26 as well as the baffle 38 at the lower end of the shaft will rotate relative to the fixed core component 40.

Turning now to FIGS. 3-5, it can be seen that radially extending lobes 68 on the baffle 38 are rotatable between a fully open position as shown in FIG. 3, where the ports 46 a through d in the core flow path component 40 are wide open, and where the lobes 68 have been rotated against one side of stop elements 70 to positions as shown in either FIG. 4 or 5 (or anywhere in between). Thus, in FIG. 4, the baffle 38 has been shown rotated slightly in a counterclockwise direction to partially close the ports 46 a through d. This will reduce the flow rate of water through the apertures and into the nozzle component, thus reducing both the flow rate and the radius of throw of the emitted stream. FIG. 5 illustrates a condition where the baffle 38 has been rotated to the maximum extent possible in a counterclockwise direction, so that the lobes 68 engage the opposite sides of stop elements 70, and, in this position, the ports 46 a through d in the core flow path component 40 are fully closed, thus preventing any flow from reaching the nozzle component. It is not necessarily anticipated that the ports would be fully closed in any normal application, but the drawings nevertheless indicate the full range of movement of the baffle 38.

Returning to FIG. 2, after the flow adjustment described above, the rotor plate 22 is pulled upwardly and returned to the position shown in FIG. 1 such that the mating arrays of teeth 62 and 64 will become disengaged so that rotation of the rotor plate 22 will not cause commensurate rotation of the shaft 26. Thus, when water flows through the nozzle 48 and impinges on the grooves 24, the rotor plate 22 will rotate about the shaft 26 to distribute the water stream radially outwardly in the desired sprinkling pattern, with a reduced (or increased) radius of throw and reduced (or increased) flow rate, depending on the adjustment.

In FIG. 6, an alternative sprinkler arrangement is shown where the sprinkler mechanism as described above (indicated generally by numeral 72) is mounted on a fixed riser 74, rather than in a pop-up type sprinkler body. In this embodiment, an adapter 76 is threadably engaged between the fixed riser 74 and a cap 78 similar to sprinkler body cap 16. Note also that flanged sleeve 80 (similar to sleeve 18) is supported on the upper edge of the adapter 76 and sandwiched between the upper edge of the adapter and the cap 78.

In both of the illustrated embodiments, a filter element 82 (or 84) is supported by the respective sleeves 18 and 80, but is not considered part of the invention per se.

While the invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not to be limited to the disclosed embodiment, but on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

Claims (12)

What is claimed is:
1. A rotating stream sprinkler comprising:
a rotor plate supported on one end of a shaft for rotation, in an operative mode, relative to the shaft; a nozzle located along said shaft upstream of said rotor plate; a baffle fixed to an opposite end of the shaft; a core flow path component located along said shaft between said nozzle and said baffle; and a drive mechanism for enabling in an adjustment mode, rotation of said rotor plate with said shaft and said baffle relative to said core flow path component to thereby alter the flow of water through said core flow path component toward said nozzle.
2. The rotating stream sprinkler of claim 1 wherein said core flow path component has a plurality of discrete flow paths defined in part by a plurality of apertures at one end thereof.
3. The rotating stream sprinkler of claim 2 wherein said baffle includes a plurality of radial lobes adapted to engage one end of said core flow path component and to thereby cover or uncover said plurality of apertures when said baffle is rotated relative to said core flow path component.
4. The rotating stream sprinkler of claim 1 wherein said rotor plate is formed with a chamber and said one end of said shaft has a stator fixed thereto within said chamber, said fluid chamber at least partially filled with a viscous fluid.
5. The rotating stream sprinkler of claim 4 wherein said chamber is closed at an upper end thereof by a rotor cap plate.
6. The rotating stream sprinkler of claim 5 wherein an underside of said rotor cap plate is provided with a first plurality of teeth and an upper surface of said stator is provided with a second plurality of mating teeth adapted to engage said first plurality of teeth in said adjustment mode.
7. The rotating stream sprinkler of claim 6 wherein said rotor plate is movable axially on said shaft to enable engagement of said first and second plurality of teeth.
8. A rotating stream sprinkler comprising:
a rotor plate supported on one end of a shaft for rotation, in an operative mode, relative to the shaft; a nozzle located along said shaft upstream of said rotor plate; and
means for adapting flow rate to said nozzle upstream of said nozzle without varying water pressure, said means comprising a baffle mounted on an opposite end of said shaft, said baffle including a plurality of radial lobes, a core flow path component located along said shaft between said nozzle and said baffle, said core flow component having an annular array of apertures at one end thereof, wherein said plurality of radial lobes are adapted to engage one end of said core flow path component and to thereby cover or uncover said plurality of apertures when said baffle is rotated relative to said core flow path component.
9. The rotating stream sprinkler of claim 8 wherein said rotor plate is formed with a plurality of grooves in an exterior surface thereof adapted to receive a stream from said nozzle, said grooves configured to cause said rotor plate to rotate when said stream impinges on said grooves.
10. The rotating stream sprinkler of claim 9 wherein said rotor plate has an internal chamber at least partially filled with a viscous fluid, and wherein a stator component is fixed to said shaft and located within said chamber.
11. The rotating stream sprinkler of claim 8 incorporated in a pop-up sprinkler body.
12. The rotating stream sprinkler of claim 8 including an adapter for mounting the rotating stream sprinkler on a fixed riser.
US09/433,299 1999-11-03 1999-11-03 Micro-stream rotator with adjustment of throw radius and flow rate Expired - Lifetime US6244521B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US09/433,299 US6244521B1 (en) 1999-11-03 1999-11-03 Micro-stream rotator with adjustment of throw radius and flow rate

Applications Claiming Priority (13)

Application Number Priority Date Filing Date Title
US09/433,299 US6244521B1 (en) 1999-11-03 1999-11-03 Micro-stream rotator with adjustment of throw radius and flow rate
US09/532,772 US6499672B1 (en) 1999-11-03 2000-03-22 Micro-stream rotator with adjustment of throw radius and flow rate
DE2000640009 DE60040009D1 (en) 1999-11-03 2000-11-02 Rotary sprinkler with adjustable range and flow
PCT/US2000/041776 WO2001031996A2 (en) 1999-11-03 2000-11-02 Micro-stream rotator with adjustment of throw radius and flow rate
ES00992029T ES2312377T3 (en) 1999-11-03 2000-11-02 Micro-irrigation rotor with discharge radius regulation and flow measurement.
AT00992029T AT405350T (en) 1999-11-03 2000-11-02 Rotary sprinkler with adjustable range and flow
IL14945000A IL149450D0 (en) 1999-11-03 2000-11-02 Micro-stream rotator with adjustment of throw radius and flow rate
MXPA02004439A MXPA02004439A (en) 1999-11-03 2000-11-02 Micro stream rotator with adjustment of throw radius and flow rate.
AU37917/01A AU775262B2 (en) 1999-11-03 2000-11-02 Micro-stream rotator with adjustment of throw radius and flow rate
EP20000992029 EP1227893B1 (en) 1999-11-03 2000-11-02 Micro-stream rotator with adjustment of throw radius and flow rate
US11/022,428 USRE40440E1 (en) 1999-11-03 2004-12-27 Micro-stream rotator with adjustment of throw radius and flow rate
US11/871,456 USRE42596E1 (en) 1999-11-03 2007-10-12 Micro-stream rotator with adjustment of throw radius and flow rate
US13/205,591 USRE45263E1 (en) 1999-11-03 2011-08-08 Micro-stream rotator with adjustment of throw radius and flow rate

Related Child Applications (3)

Application Number Title Priority Date Filing Date
US09/532,772 Continuation-In-Part US6499672B1 (en) 1999-11-03 2000-03-22 Micro-stream rotator with adjustment of throw radius and flow rate
US09/532,772 Division US6499672B1 (en) 1999-11-03 2000-03-22 Micro-stream rotator with adjustment of throw radius and flow rate
US11/022,428 Continuation-In-Part USRE40440E1 (en) 1999-11-03 2004-12-27 Micro-stream rotator with adjustment of throw radius and flow rate

Publications (1)

Publication Number Publication Date
US6244521B1 true US6244521B1 (en) 2001-06-12

Family

ID=23719646

Family Applications (1)

Application Number Title Priority Date Filing Date
US09/433,299 Expired - Lifetime US6244521B1 (en) 1999-11-03 1999-11-03 Micro-stream rotator with adjustment of throw radius and flow rate

Country Status (1)

Country Link
US (1) US6244521B1 (en)

Cited By (49)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6499672B1 (en) * 1999-11-03 2002-12-31 Nelson Irrigation Corporation Micro-stream rotator with adjustment of throw radius and flow rate
US20030098365A1 (en) * 2001-11-28 2003-05-29 Lockwood George H. Method and apparatus for reducing the precipitation rate of an irrigation sprinkler
US20040108391A1 (en) * 2002-12-04 2004-06-10 Onofrio Travis L. Rotating stream sprinkler with speed control brake
US20040124261A1 (en) * 2001-10-19 2004-07-01 Nelson Irrigation Corporation Water distribution plate for rotating sprinklers
EP1452234A2 (en) 2003-02-28 2004-09-01 Rain Bird Corporation Rotating stream sprinkler with turbine speed governor
US20040227007A1 (en) * 2001-03-28 2004-11-18 Nelson Irrigation Corporation Adjustable arc, adjustable flow rate sprinkler
US20050035211A1 (en) * 2003-08-14 2005-02-17 Nelson Irrigation Corporation Shaft seal with grease retainer
US20050040256A1 (en) * 2003-08-19 2005-02-24 Santos Lino De Los Rotating stream sprinkler with ball drive
US20070181711A1 (en) * 2006-02-08 2007-08-09 Nelson Irrigation Corporation Adjustable flow rate, rectangular pattern sprinkler
US20080169363A1 (en) * 2007-01-12 2008-07-17 Walker Samuel C Variable arc nozzle
WO2009036382A1 (en) 2007-09-14 2009-03-19 The Toro Company Sprinkler with dual shafts
US20090108099A1 (en) * 2007-10-30 2009-04-30 Porter Lamonte D Rotary Stream Sprinkler Nozzle with Offset Flutes
US20090140076A1 (en) * 2007-12-04 2009-06-04 Cordua Paul M Rotating sprinkler head valve
US20100090024A1 (en) * 2008-10-09 2010-04-15 Steven Brian Hunnicutt Sprinkler with variable arc and flow rate
US20100301135A1 (en) * 2009-05-29 2010-12-02 Steven Brian Hunnicutt Sprinkler with Variable Arc and Flow Rate and Method
US8272583B2 (en) 2009-05-29 2012-09-25 Rain Bird Corporation Sprinkler with variable arc and flow rate and method
US20120273592A1 (en) * 2011-03-29 2012-11-01 Richard Zhang Viscous damped stream rotary deflector with internal spiraled damping ribs
US8602325B2 (en) 2008-03-07 2013-12-10 Hunter Industries, Inc. Hydraulically actuated sprinkler nozzle cover
US8651400B2 (en) 2007-01-12 2014-02-18 Rain Bird Corporation Variable arc nozzle
US8783582B2 (en) 2010-04-09 2014-07-22 Rain Bird Corporation Adjustable arc irrigation sprinkler nozzle configured for positive indexing
US8925837B2 (en) 2009-05-29 2015-01-06 Rain Bird Corporation Sprinkler with variable arc and flow rate and method
US8939384B1 (en) 2007-06-12 2015-01-27 Hunter Industries, Inc. Planetary gear drive rotor-type sprinkler with adjustable arc/full circle selection mechanism
US8955768B1 (en) 2007-06-12 2015-02-17 Hunter Industries, Inc. Reversing mechanism for an irrigation sprinkler with a reversing gear drive
US8955767B1 (en) 2007-06-12 2015-02-17 Hunter Industries, Inc. Rotor-type irrigation sprinkler with coarse and fine arc adjustment
US9079202B2 (en) 2012-06-13 2015-07-14 Rain Bird Corporation Rotary variable arc nozzle
US9120111B2 (en) 2012-02-24 2015-09-01 Rain Bird Corporation Arc adjustable rotary sprinkler having full-circle operation and automatic matched precipitation
US9149827B2 (en) 2013-03-05 2015-10-06 Hunter Industries, Inc. Pop-up irrigation sprinkler with shock absorbing riser retraction springs
US9156043B2 (en) 2012-07-13 2015-10-13 Rain Bird Corporation Arc adjustable rotary sprinkler with automatic matched precipitation
US9169944B1 (en) 2012-11-19 2015-10-27 Hunter Industries, Inc. Valve-in head irrigation sprinkler with service valve
US9174227B2 (en) 2012-06-14 2015-11-03 Rain Bird Corporation Irrigation sprinkler nozzle
US9253950B1 (en) 2012-10-04 2016-02-09 Hunter Industries, Inc. Low flow emitter with exit port closure mechanism for subsurface irrigation
US9295998B2 (en) 2012-07-27 2016-03-29 Rain Bird Corporation Rotary nozzle
US9296004B1 (en) 2014-02-03 2016-03-29 Hunter Industries, Inc. Rotor-type sprinkler with pressure regulator in outer case
US9314952B2 (en) 2013-03-14 2016-04-19 Rain Bird Corporation Irrigation spray nozzle and mold assembly and method of forming nozzle
US9327297B2 (en) 2012-07-27 2016-05-03 Rain Bird Corporation Rotary nozzle
US9427751B2 (en) 2010-04-09 2016-08-30 Rain Bird Corporation Irrigation sprinkler nozzle having deflector with micro-ramps
US9446421B1 (en) 2007-06-12 2016-09-20 Hunter Industries, Inc. Rotor-type sprinkler with adjustable arc/full circle selection mechanism
US9492832B2 (en) 2013-03-14 2016-11-15 Rain Bird Corporation Sprinkler with brake assembly
US9504209B2 (en) 2010-04-09 2016-11-29 Rain Bird Corporation Irrigation sprinkler nozzle
US9700904B2 (en) 2014-02-07 2017-07-11 Rain Bird Corporation Sprinkler
US9699974B2 (en) 2014-02-03 2017-07-11 Hunter Industries, Inc. Rotor-type sprinkler with pressure regulator in outer case
US9808813B1 (en) 2007-10-30 2017-11-07 Hunter Industries, Inc. Rotary stream sprinkler nozzle with offset flutes
EP3284543A1 (en) * 2016-08-17 2018-02-21 Nelson Irrigation Corporation Viscous rotational speed control device with fluid circuit
US10029265B2 (en) 2014-12-23 2018-07-24 Hunter Industries, Inc. Reversing mechanism for irrigation sprinkler with disengaging gears
US10099231B2 (en) 2007-06-12 2018-10-16 Hunter Industries, Inc. Reversing mechanism for an irrigation sprinkler with a reversing gear drive
US10138781B2 (en) 2016-09-01 2018-11-27 Ford Global Technologies, Llc Method and system to improve cold-start catalyst light-off
US10232395B2 (en) 2010-07-19 2019-03-19 Irrigreen, Inc. Multi-nozzle rotary sprinkler
US10322423B2 (en) 2016-11-22 2019-06-18 Rain Bird Corporation Rotary nozzle
US10350619B2 (en) 2013-02-08 2019-07-16 Rain Bird Corporation Rotary sprinkler

Citations (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3131867A (en) 1963-05-31 1964-05-05 J C Nees And Betty Nees Rotary pop-up sprinkler
US3884416A (en) * 1974-08-29 1975-05-20 Norton Paul D Device for distributing irrigation water
US3940066A (en) 1974-07-11 1976-02-24 The Toro Company Pop-up sprinkler head having flow adjustment means
US4119275A (en) 1977-01-31 1978-10-10 The Toro Company Fluid spray head and method adapted to spray specific pattern
US4154404A (en) 1977-03-11 1979-05-15 Clawson Roger B Adjustable sprinkler head and method of making same
US4261515A (en) * 1979-12-28 1981-04-14 Peretz Rosenberg Rotary sprinkler
US4579285A (en) 1984-04-19 1986-04-01 Hunter Edwin J Adjustable sprinkler system
USRE32386E (en) 1973-10-11 1987-03-31 The Toro Company Sprinkler systems
US4815662A (en) 1987-11-23 1989-03-28 Hunter Edwin J Stream propelled rotary stream sprinkler unit with damping means
US4842201A (en) 1986-06-26 1989-06-27 Hunter Edwin J Rotary stream sprinkler unit
US4850532A (en) * 1988-08-03 1989-07-25 Donutrimmer Equipment, Inc. Process for sprinkling lawns
US4867379A (en) 1986-06-26 1989-09-19 Hunter Edwin J Rotary stream sprinkler unit
US4898332A (en) 1986-06-26 1990-02-06 Edwin J. Hunter Adjustable rotary stream sprinkler unit
US4932590A (en) 1989-08-07 1990-06-12 Hunter Edwin J Rotary stream sprinkler unit with rotor damping means
US4944456A (en) * 1988-04-29 1990-07-31 Dan Mamtirim Rotary sprinkler
US4967961A (en) 1986-06-26 1990-11-06 Hunter Edwin J Rotary stream sprinkler unit
US4971250A (en) 1989-08-07 1990-11-20 Hunter Edwin J Rotary stream sprinkler unit with rotor damping means
US4986474A (en) 1989-08-07 1991-01-22 Nelson Irrigation Corporation Stream propelled rotary pop-up sprinkler
US5031840A (en) 1989-09-13 1991-07-16 The Toro Company Adjustable radius sprinkler nozzle
US5058806A (en) 1990-01-16 1991-10-22 Nelson Irrigation Corporation Stream propelled rotary pop-up sprinkler with adjustable sprinkling pattern
USRE33823E (en) 1985-09-18 1992-02-18 Nelson Irrigation Corporation Rotary sprinkler head
US5148990A (en) 1990-06-29 1992-09-22 Kah Jr Carl L C Adjustable arc spray and rotary stream sprinkler
US5226602A (en) 1989-09-13 1993-07-13 The Toro Company Adjustable radius sprinkler nozzle
US5288022A (en) 1991-11-08 1994-02-22 Nelson Irrigation Corporation Part circle rotator with improved nozzle assembly
US5360167A (en) 1989-09-13 1994-11-01 The Toro Company Adjustable radius sprinkler nozzle
US5556036A (en) 1994-10-26 1996-09-17 Hunter Industries Incorporated Adjustable arc spinkler nozzle
US5647541A (en) * 1995-04-28 1997-07-15 Nelson; Michael C. Water flow control device for rotary sprinkler
US5762270A (en) 1995-12-08 1998-06-09 Hunter Industries Incorporated Sprinkler unit with flow stop
US5823440A (en) 1996-04-23 1998-10-20 Hunter Industries, Incorporated Rotary sprinkler with velocity controlling valve
US5927607A (en) 1998-02-26 1999-07-27 Hunter Industries Incorporated Sprinkle with velocity control disc

Patent Citations (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3131867A (en) 1963-05-31 1964-05-05 J C Nees And Betty Nees Rotary pop-up sprinkler
USRE32386E (en) 1973-10-11 1987-03-31 The Toro Company Sprinkler systems
US3940066A (en) 1974-07-11 1976-02-24 The Toro Company Pop-up sprinkler head having flow adjustment means
US3884416A (en) * 1974-08-29 1975-05-20 Norton Paul D Device for distributing irrigation water
US4119275A (en) 1977-01-31 1978-10-10 The Toro Company Fluid spray head and method adapted to spray specific pattern
US4154404A (en) 1977-03-11 1979-05-15 Clawson Roger B Adjustable sprinkler head and method of making same
US4261515A (en) * 1979-12-28 1981-04-14 Peretz Rosenberg Rotary sprinkler
US4579285A (en) 1984-04-19 1986-04-01 Hunter Edwin J Adjustable sprinkler system
USRE33823E (en) 1985-09-18 1992-02-18 Nelson Irrigation Corporation Rotary sprinkler head
US4898332A (en) 1986-06-26 1990-02-06 Edwin J. Hunter Adjustable rotary stream sprinkler unit
US4842201A (en) 1986-06-26 1989-06-27 Hunter Edwin J Rotary stream sprinkler unit
US4867379A (en) 1986-06-26 1989-09-19 Hunter Edwin J Rotary stream sprinkler unit
US4967961A (en) 1986-06-26 1990-11-06 Hunter Edwin J Rotary stream sprinkler unit
US4815662A (en) 1987-11-23 1989-03-28 Hunter Edwin J Stream propelled rotary stream sprinkler unit with damping means
US4944456A (en) * 1988-04-29 1990-07-31 Dan Mamtirim Rotary sprinkler
US4850532A (en) * 1988-08-03 1989-07-25 Donutrimmer Equipment, Inc. Process for sprinkling lawns
US4971250A (en) 1989-08-07 1990-11-20 Hunter Edwin J Rotary stream sprinkler unit with rotor damping means
US4986474A (en) 1989-08-07 1991-01-22 Nelson Irrigation Corporation Stream propelled rotary pop-up sprinkler
US4932590A (en) 1989-08-07 1990-06-12 Hunter Edwin J Rotary stream sprinkler unit with rotor damping means
US5360167A (en) 1989-09-13 1994-11-01 The Toro Company Adjustable radius sprinkler nozzle
US5031840A (en) 1989-09-13 1991-07-16 The Toro Company Adjustable radius sprinkler nozzle
US5226602A (en) 1989-09-13 1993-07-13 The Toro Company Adjustable radius sprinkler nozzle
US5058806A (en) 1990-01-16 1991-10-22 Nelson Irrigation Corporation Stream propelled rotary pop-up sprinkler with adjustable sprinkling pattern
US5148990A (en) 1990-06-29 1992-09-22 Kah Jr Carl L C Adjustable arc spray and rotary stream sprinkler
US5288022A (en) 1991-11-08 1994-02-22 Nelson Irrigation Corporation Part circle rotator with improved nozzle assembly
US5556036A (en) 1994-10-26 1996-09-17 Hunter Industries Incorporated Adjustable arc spinkler nozzle
US5647541A (en) * 1995-04-28 1997-07-15 Nelson; Michael C. Water flow control device for rotary sprinkler
US5762270A (en) 1995-12-08 1998-06-09 Hunter Industries Incorporated Sprinkler unit with flow stop
US5823440A (en) 1996-04-23 1998-10-20 Hunter Industries, Incorporated Rotary sprinkler with velocity controlling valve
US5927607A (en) 1998-02-26 1999-07-27 Hunter Industries Incorporated Sprinkle with velocity control disc

Cited By (82)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE42596E1 (en) 1999-11-03 2011-08-09 Hunter Industries, Inc. Micro-stream rotator with adjustment of throw radius and flow rate
US6499672B1 (en) * 1999-11-03 2002-12-31 Nelson Irrigation Corporation Micro-stream rotator with adjustment of throw radius and flow rate
USRE40440E1 (en) * 1999-11-03 2008-07-22 Hunter Industries Incorporated Micro-stream rotator with adjustment of throw radius and flow rate
USRE45263E1 (en) * 1999-11-03 2014-12-02 Hunter Industries Incorporated Micro-stream rotator with adjustment of throw radius and flow rate
US20040227007A1 (en) * 2001-03-28 2004-11-18 Nelson Irrigation Corporation Adjustable arc, adjustable flow rate sprinkler
US7159795B2 (en) 2001-03-28 2007-01-09 Nelson Irrigation Corporation Adjustable arc, adjustable flow rate sprinkler
US7240860B2 (en) * 2001-10-19 2007-07-10 Nelson Irrigation Corporation Water distribution plate for rotating sprinklers
US20040124261A1 (en) * 2001-10-19 2004-07-01 Nelson Irrigation Corporation Water distribution plate for rotating sprinklers
US20030098365A1 (en) * 2001-11-28 2003-05-29 Lockwood George H. Method and apparatus for reducing the precipitation rate of an irrigation sprinkler
US6921029B2 (en) * 2001-11-28 2005-07-26 Rain Bird Corporation Method and apparatus for reducing the precipitation rate of an irrigation sprinkler
CN100448549C (en) * 2002-12-04 2009-01-07 雷鸟有限公司 Rotating stream sprinkler with speed control brake
US20040108391A1 (en) * 2002-12-04 2004-06-10 Onofrio Travis L. Rotating stream sprinkler with speed control brake
US6814304B2 (en) 2002-12-04 2004-11-09 Rain Bird Corporation Rotating stream sprinkler with speed control brake
US7168634B2 (en) 2002-12-04 2007-01-30 Rain Bird Corporation Debris resistant collar for rotating stream sprinklers
EP1452234A2 (en) 2003-02-28 2004-09-01 Rain Bird Corporation Rotating stream sprinkler with turbine speed governor
US7025287B2 (en) 2003-08-14 2006-04-11 Nelson Irrigation Corporation Shaft seal with grease retainer
US20060038036A1 (en) * 2003-08-14 2006-02-23 Nelson Irrigation Corporation Shaft seal with grease retainer
US20050035211A1 (en) * 2003-08-14 2005-02-17 Nelson Irrigation Corporation Shaft seal with grease retainer
US7086608B2 (en) * 2003-08-14 2006-08-08 Nelson Irrigation Corporation Shaft seal with grease retainer
US20050040256A1 (en) * 2003-08-19 2005-02-24 Santos Lino De Los Rotating stream sprinkler with ball drive
US6883727B2 (en) 2003-08-19 2005-04-26 Rain Bird Corporation Rotating stream sprinkler with ball drive
US20070181711A1 (en) * 2006-02-08 2007-08-09 Nelson Irrigation Corporation Adjustable flow rate, rectangular pattern sprinkler
US7611077B2 (en) * 2006-02-08 2009-11-03 Hunter Industries, Inc. Adjustable flow rate, rectangular pattern sprinkler
AU2007200492B2 (en) * 2006-02-08 2011-08-11 Hunter Industries Incorporated Adjustable flow rate, rectangular pattern sprinkler
US8651400B2 (en) 2007-01-12 2014-02-18 Rain Bird Corporation Variable arc nozzle
US20080169363A1 (en) * 2007-01-12 2008-07-17 Walker Samuel C Variable arc nozzle
US7703706B2 (en) 2007-01-12 2010-04-27 Rain Bird Corporation Variable arc nozzle
US8939384B1 (en) 2007-06-12 2015-01-27 Hunter Industries, Inc. Planetary gear drive rotor-type sprinkler with adjustable arc/full circle selection mechanism
US8955767B1 (en) 2007-06-12 2015-02-17 Hunter Industries, Inc. Rotor-type irrigation sprinkler with coarse and fine arc adjustment
US10099231B2 (en) 2007-06-12 2018-10-16 Hunter Industries, Inc. Reversing mechanism for an irrigation sprinkler with a reversing gear drive
US9446421B1 (en) 2007-06-12 2016-09-20 Hunter Industries, Inc. Rotor-type sprinkler with adjustable arc/full circle selection mechanism
US8955768B1 (en) 2007-06-12 2015-02-17 Hunter Industries, Inc. Reversing mechanism for an irrigation sprinkler with a reversing gear drive
US8006919B2 (en) 2007-09-14 2011-08-30 The Toro Company Sprinkler with dual shafts
WO2009036382A1 (en) 2007-09-14 2009-03-19 The Toro Company Sprinkler with dual shafts
US8540171B2 (en) 2007-09-14 2013-09-24 The Toro Company Sprinkler with dual shafts
US20090072048A1 (en) * 2007-09-14 2009-03-19 The Toro Company Sprinkler With Dual Shafts
US9808813B1 (en) 2007-10-30 2017-11-07 Hunter Industries, Inc. Rotary stream sprinkler nozzle with offset flutes
US20090108099A1 (en) * 2007-10-30 2009-04-30 Porter Lamonte D Rotary Stream Sprinkler Nozzle with Offset Flutes
US8282022B2 (en) 2007-10-30 2012-10-09 Hunter Industries, Inc. Rotary stream sprinkler nozzle with offset flutes
US20090140076A1 (en) * 2007-12-04 2009-06-04 Cordua Paul M Rotating sprinkler head valve
US20120223162A1 (en) * 2007-12-04 2012-09-06 Cordua Paul M Rotating sprinkler head valve
US20100090030A1 (en) * 2007-12-04 2010-04-15 Cordua Paul M Rotating sprinkler head valve
US8608092B2 (en) * 2007-12-04 2013-12-17 Paul M. Cordua Rotating sprinkler head valve
US8205811B2 (en) 2007-12-04 2012-06-26 Cordua Paul M Rotating sprinkler head valve
US9238238B2 (en) 2007-12-04 2016-01-19 Paul M. Cordua Rotating sprinkler head valve
US7654474B2 (en) 2007-12-04 2010-02-02 Cordua Paul M Rotating sprinkler head valve
US8602325B2 (en) 2008-03-07 2013-12-10 Hunter Industries, Inc. Hydraulically actuated sprinkler nozzle cover
US20100090024A1 (en) * 2008-10-09 2010-04-15 Steven Brian Hunnicutt Sprinkler with variable arc and flow rate
US8789768B2 (en) 2008-10-09 2014-07-29 Rain Bird Corporation Sprinkler with variable arc and flow rate
US8074897B2 (en) 2008-10-09 2011-12-13 Rain Bird Corporation Sprinkler with variable arc and flow rate
US8672242B2 (en) 2009-05-29 2014-03-18 Rain Bird Corporation Sprinkler with variable arc and flow rate and method
US8925837B2 (en) 2009-05-29 2015-01-06 Rain Bird Corporation Sprinkler with variable arc and flow rate and method
US8695900B2 (en) 2009-05-29 2014-04-15 Rain Bird Corporation Sprinkler with variable arc and flow rate and method
US8272583B2 (en) 2009-05-29 2012-09-25 Rain Bird Corporation Sprinkler with variable arc and flow rate and method
US20100301135A1 (en) * 2009-05-29 2010-12-02 Steven Brian Hunnicutt Sprinkler with Variable Arc and Flow Rate and Method
US9427751B2 (en) 2010-04-09 2016-08-30 Rain Bird Corporation Irrigation sprinkler nozzle having deflector with micro-ramps
US8783582B2 (en) 2010-04-09 2014-07-22 Rain Bird Corporation Adjustable arc irrigation sprinkler nozzle configured for positive indexing
US9504209B2 (en) 2010-04-09 2016-11-29 Rain Bird Corporation Irrigation sprinkler nozzle
US10232395B2 (en) 2010-07-19 2019-03-19 Irrigreen, Inc. Multi-nozzle rotary sprinkler
US20120273592A1 (en) * 2011-03-29 2012-11-01 Richard Zhang Viscous damped stream rotary deflector with internal spiraled damping ribs
US9120111B2 (en) 2012-02-24 2015-09-01 Rain Bird Corporation Arc adjustable rotary sprinkler having full-circle operation and automatic matched precipitation
US9079202B2 (en) 2012-06-13 2015-07-14 Rain Bird Corporation Rotary variable arc nozzle
US9174227B2 (en) 2012-06-14 2015-11-03 Rain Bird Corporation Irrigation sprinkler nozzle
US9156043B2 (en) 2012-07-13 2015-10-13 Rain Bird Corporation Arc adjustable rotary sprinkler with automatic matched precipitation
US9295998B2 (en) 2012-07-27 2016-03-29 Rain Bird Corporation Rotary nozzle
US9327297B2 (en) 2012-07-27 2016-05-03 Rain Bird Corporation Rotary nozzle
US9814189B1 (en) 2012-10-04 2017-11-14 Hunter Industries, Inc. Low flow emitter with exit port closure mechanism for subsurface irrigation
US9253950B1 (en) 2012-10-04 2016-02-09 Hunter Industries, Inc. Low flow emitter with exit port closure mechanism for subsurface irrigation
US9578817B2 (en) 2012-11-19 2017-02-28 Hunter Industries, Inc. Valve-in-head irrigation sprinkler with service valve
US9169944B1 (en) 2012-11-19 2015-10-27 Hunter Industries, Inc. Valve-in head irrigation sprinkler with service valve
US10350619B2 (en) 2013-02-08 2019-07-16 Rain Bird Corporation Rotary sprinkler
US9149827B2 (en) 2013-03-05 2015-10-06 Hunter Industries, Inc. Pop-up irrigation sprinkler with shock absorbing riser retraction springs
US9314952B2 (en) 2013-03-14 2016-04-19 Rain Bird Corporation Irrigation spray nozzle and mold assembly and method of forming nozzle
US9492832B2 (en) 2013-03-14 2016-11-15 Rain Bird Corporation Sprinkler with brake assembly
US9296004B1 (en) 2014-02-03 2016-03-29 Hunter Industries, Inc. Rotor-type sprinkler with pressure regulator in outer case
US9699974B2 (en) 2014-02-03 2017-07-11 Hunter Industries, Inc. Rotor-type sprinkler with pressure regulator in outer case
US9700904B2 (en) 2014-02-07 2017-07-11 Rain Bird Corporation Sprinkler
US10507476B2 (en) 2014-02-07 2019-12-17 Rain Bird Corporation Sprinkler with brake assembly
US10029265B2 (en) 2014-12-23 2018-07-24 Hunter Industries, Inc. Reversing mechanism for irrigation sprinkler with disengaging gears
EP3284543A1 (en) * 2016-08-17 2018-02-21 Nelson Irrigation Corporation Viscous rotational speed control device with fluid circuit
US10138781B2 (en) 2016-09-01 2018-11-27 Ford Global Technologies, Llc Method and system to improve cold-start catalyst light-off
US10322423B2 (en) 2016-11-22 2019-06-18 Rain Bird Corporation Rotary nozzle

Similar Documents

Publication Publication Date Title
US20180015487A1 (en) Irrigation Nozzle Assembly and Method
US8893986B2 (en) Spray nozzle with adjustable arc spray elevation angle and flow
US6840460B2 (en) Rotor type sprinkler with insertable drive subassembly including horizontal turbine and reversing mechanism
US6817543B2 (en) Toggle over-center mechanism for shifting the reversing mechanism of an oscillating rotor type sprinkler
CA1066744A (en) Fluid spray head and method adapted to spray specific pattern
US6017300A (en) High performance soot removing centrifuge with impulse turbine
US3711029A (en) Spray nozzle
US5031840A (en) Adjustable radius sprinkler nozzle
EP0372182B1 (en) Rotor nozzle for a high-pressure cleaning device
US3921912A (en) Lawn sprinkler
DE60106357T2 (en) Hose end sprayer of the suction type
US6695223B2 (en) Adjustable stator for rotor type sprinkler
US5577664A (en) Shower head with variable flow rate, pulsation and spray pattern
US5671886A (en) Rotary sprinkler stream interrupter with enhanced emitting stream
US5556036A (en) Adjustable arc spinkler nozzle
US4681260A (en) Two piece variable stator for sprinkler nozzle flow control
US4796811A (en) Sprinkler having a flow rate compensating slow speed rotary distributor
CA2096253C (en) Body spray nozzle
US5642861A (en) Plastic spray nozzle with improved distribution
US4898332A (en) Adjustable rotary stream sprinkler unit
US3421702A (en) Adjustable multiple fluid atomizing nozzle
US8282022B2 (en) Rotary stream sprinkler nozzle with offset flutes
US4204646A (en) Hand-held pulsating shower
US6834816B2 (en) Selected range arc settable spray nozzle with pre-set proportional connected upstream flow throttling
US4613080A (en) Multiple outlet trickle irrigation unit

Legal Events

Date Code Title Description
AS Assignment

Owner name: NELSON IRRIGATION CORPORATION, WASHINGTON

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:SESSER, GEORGE;REEL/FRAME:010474/0255

Effective date: 19991214

STCF Information on status: patent grant

Free format text: PATENTED CASE

CC Certificate of correction
FPAY Fee payment

Year of fee payment: 4

CC Certificate of correction
AS Assignment

Owner name: HUNTER INDUSTRIES INCORPORATED, CALIFORNIA

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:NELSON IRRIGATION CORPORATION;REEL/FRAME:019699/0442

Effective date: 20070622

FPAY Fee payment

Year of fee payment: 8

FPAY Fee payment

Year of fee payment: 12